Tool for inserting and removing bearing sleeves



F. MERDIAN TOOL FOR INSERTING" AND REMOVING BEARING SLEEVES March 1, 1927. 1,619,625

Filed May 6. 1926 Patented Mar. 1, 192 7.

UNITED STATES FRED MERIDIAN, OF VANCOUVER, WASHINGTON.

TOOL FOR INSER'IING AND REMOVING BEARING SLEEVES.

Application filed May 6,

This invention relates to tools for inserting and removing bearing sleeves and more particularly to a device primarily lntended for removing the split resilient sleeves employed with roller bearings. An important object of the lnventlon 1s to provide a device of this character whlch provides a means for compressing the sleeve so that it may be readily inserted and means for removing the sleeve so constructed that the sleeve may be rotated to assist in the removal thereof.

A further object of the invention is to provide a device of this character which may be readily and cheaply constructed, which will be durable and efficient inservice and a general improvement in the art.

These and other objects I attain by the construction shown in the accompanying drawings, wherein for the purpose of illustration is shown a preferred embodiment of my invention and wherein Figure 1 is a sectional view showing an applying and removing tool constructed 1n accordance with my invention in position within the sleeve;

Figure 2 is a side elevation of the tool when arranged at right angles to the position shown in Figure 1;

Figure 3 is a section on the line 33 of Figure 1;

Figure at is a section on the line 1-4 of Figure 1; t

Figure 5 is a fragmentary side elevation of a slightly modified form of tool;

Figure 6 is a perspective view of the sleeve engaging end of the tube.

Referring now more particularly to the drawings, the tool comprises arms 10 and'll connected with one another at one end in a manner permitting shifting of the opposite ends thereof toward or away from one another. In Figure 1, the arms are shown as pivotally connected with one another, as at 12, while in Figure 5, an integral resilient connection between the arms is provided at 13. The arms 10 and 11 have intermediate the ends thereof oppositely bowed portions 14, the purpose of which will presently apear.

Directed through the arms is a handle 19%. Serial No. 107,194.

member 15'by means of which the tool may be rotated about its longitudinal axis, this handle member including stops 16 for limiting the separation of the arms. In the form shown in Figure 1, this handle member between the arms provides a mounting for a spring 17 whereby the free ends of the arms are urged apart. The free end of the arm 10 has upon its outer face a lug 18 While the free end of the arm 11 has projecting to that side thereof next adjacent the arm 10 a circular structure 19 of a diameter substantially equal to the internal diameter of the bushing or sleeve which is to be removed when this sleeve is in its applied position. In opposition to the arm 10, this circular structure has an opening or slot 20 permitting movement of the arm 10 into substantially contacting relation with the free end of the arm 11.

It will be noted that the construction employed produces upon the lower end of the arm 11 angular arms 21, the outer faces of which are arcuate and produce the circular structure 19. The space between adjacent faces of the arms admits passage of the arm 10 in the manner just described. Upon outer faces of the arms are arranged stops 22 adapted to engage one end of thebushing or sleeve 23 which is to be inserted or removed at the same time that the lug 18 upon the free end of the arm 10 enters an opening 24 with which such bushings are provided.

As is well known to those familiar with the art, the sleeves of roller bearings are usually longitudinally split and formed from spring steel so that the split 25, when the sleeve is removed, stands open a consid erable extent. As a matter of fact, these splits not only stand open before the bushing is inserted but are partially open when the bushing is in its seat tho to a less extent than they are open when freed. Because of their resilient construction, it is sometimes hard to urge a lug 26 formed upon the outer face of the sleeve into a socket provided for its reception in the housing. These sleeves are extremely diflicult to remove and must be rotated if there is to be any efiiciency in the removing operation.

In removlng the sleeve with a tool constructed in accordance with my invention, the tool is inserted until the shoulders or stops 22 engage against the end of the bushing. At this time, the lug 18 will be in c1rcumferential alignment with the openingQd and may be engaged therein by rotating the tool about its axis until the engagement is effected. This lug then serves both as a means for withdrawing the sleeve and as a means for rotating the same when the tool is rotated by the handle 15. This handle 15 serves both as a means for exercising a pull upon the tool and for rotating the same. Since the circular member 19 is of substantially thesame diameter as the internal diameter of the inserted sleeve, the free end of the arm 10 will lie between the outer ends of thearm 21 and any relative twisting action of the arms is prevented. When it is desired to insert a removed sleeve, the sleeve is placed between the oppositely bowed portions 14: of the arms which, when the free ends of the arms are separated to the greatest possible extent, will just receive the sleeve. The free ends of the sleeve are then moved toward one another with the result that the sleeve is compressed sufficiently to enable its ready insertion in the housing. After the sleeve has been started in the housing, the freeends of the arms may be 1nserted in the sleeve and the lug 18 engaged in the opening Qet, as above'described, and pressure applied to the sleeve by the stops 22 while the sleeve is rotated to cause the same to seat more readily in the housing.

Since the construction hereinbefore set forth is capable of a certain range ofchange and modification without materially departing from the spirit of the invention, I do not limit myself to such specific structure except as hereinafter claimed.

1. A tool for inserting and removing bushings comprising a pair of arms connected at one end and resiliently urged apart at their opposite ends, the free end of one arm being provided with a lug for engagement in an opening in the bushing, the free, end of the other arm having spaced arms directed toward the first named arm and between the ends of which the free end of the first named arm is confined when the tool is inserted in a bushing of the proper size.

2. A tool for inserting and removing bushings comprising a pair of arms connected at one end and resiliently urged apart at their opposite ends, the free end of one arm being provided with a lug for engagement in an opening in the bushing, the. free end of the other arm having spaced arms directed toward the first named arm and between the ends of which the free end of the first named arm is confined whenthe tool is inserted in a bushing of the proper size, the outer faces of said arms being arcuately curved and arranged upon a diameter equal to the internal diameter of the bushing.

3. A tool for inserting and removing bushings comprising a pair of arms connected at one end and resiliently urged apart at their opposite ends, the free end of one arm be ing provided with a lug for engagement in an opening in the bushing, the free end of the other arm having spaced arms directed toward the firstnamed a m and between the ends of which the free end of the first named arm is confined when the tool is inserted in a bushing of the proper size, the outer faces of the arms in spaced relation to the free ends thereof having stops for engagement with the end wall of the bushing when the lag is circumferentially aligned with the opening of the bushing. i I i a. A tool for inserting and removing bushings comprising a pair of arms connectedat one end and resiliently urged apart at their opposite ends, the freeend of one arm being provided with a ing forengagement in an opening in the bushing, the free end of the other arm having spaced arms directed toward the first namedbarm and between the ends of which the free end of the first named arm is confined when the tool is inserted 111 a bushlng of the proper size, said arms being provided ntermediate their ends with arcuately bowed portions adapted to receive therebetween a bushing of the type with which the tool is to be employed when the free ends ofthe arms are separated to their greatest extent. v y r 5. A tool for inserting and remo ing bushlngs eomprisinga pair of arms connected at one end and resiliently urged apart-at their opposite ends, the free end of one arm being provided with a lug for engagement in an opening inthe bushing, the free end of the other arm having spaced arms directed toward the first named arm and between the ends of which the free end of the first named arm is confined when the tool is inserted in a bushing of the proper size, said arms being provided intermediate their ends with arcu ately bowed portions adapted to receive therebetween a bushing of the type with which the tool is to be employed when the free ends of the arms are separated to their greatest extent and a handle providing means for rotating the tool and applying tract1on or pressure thereto in the direction of the axis of the tool.

6. A tool for inserting and removing bushings comprising a pair of arms connected at one end and resiliently urged apart at their opposite'ends, the free end of one arm being provided with a lug for engagement in an opening in the bushing, the free end of the other arm having spaced arms directed toward the first named arm and between the ends of which the free end of the first named arm is confined when the tool is inserted in a bushing of the proper size, said arms being provided intermediate their ends with arouately bowed portions adapted to receive therebetween a bushing 01'' the type with which the tool is to be employed when the free ends of the arms are separated to their greatest extent and a handle providing means for rotating the tool and applying traction or pressure thereto in the direction of the axis of the tool and including stops for limiting separation of the arms.

7. A tool for inserting and removing bushings comprising a pair of arms connected at one end and resiliently urged apart at their opposite ends, the free end of one arm being provided with a lug for engagement in an opening in the bushing, the free ends of said arms being complementary to provide a substantially circular element adapted to engage within the bushing.

8. A tool for inserting and removing bushings comprising a pair of arms connected at one end and resiliently urged apart at their opposite ends, the free end of one arm being provided with a lug for engagement in an opening in the bushing, the free ends of said arms being complementary to provide a substantially circular element adapted to enwithin the bushing, the outer face of one of said arms having a lug spaced from the first named lug a distance equal to the distance between the opening and the opposite end of the bushing whereby to guide the first named lug into the opening of the bushing.

9. A tool for inserting and removing bushings comprising a pair of arms connected at one end and resiliently urged apart at their opposite ends, the free end of one arm being provided with a lug for engagement in an opening in the bushing, the free ends of said arms being complementary to provide a substantially circular element adapted to engage within the bushing, said arms being provided at the opposite ends thereof with arcuately curved portions adapted to receive therebetween a bushing of the type with vhich the tool is to be employed and to compress the same to a diameter less than the internal diameter of the housing in which the bushing is to be inserted.

In testimony whereof I hereunto affix my signature.

FRED MERDIAN. 

